• It’s official: Ryan Seacrest has been named host of Million Second Quiz, NBC’s new 24-hour live game show. The competition series finds contestants testing their knowledge and endurance in a battle of trivia for 12 days and nights.

• CBS is redeveloping its untitled Jim Gaffigan comedy pilot for the 2013-14 season, TVLine has learned. The project, based on the comedian’s real life, centers on a “happily married and harried” NYC father of five.

• MTV has greenlit four new series: The Untitled Virgins Project, which follows the lives of abstinent young adults; MTV’s House of Food, a cooking competition for young aspiring chefs; the munchie-based cooking competition Snackdown; and The Ex and the Why, in which exes confront past issues and try to make amends.